Building a Remote MCP Server on Cloudflare (Without Auth)

@rosedael

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About Building a Remote MCP Server on Cloudflare (Without Auth)

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#cloudflare #mcp-server #remote-server

Config

No standard config provided

This server doesn't expose a parseable MCP config block in its README. See the repository for install instructions.

Repository

Tools

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We auto-extract tools from the README. The maintainer can list them under a ## Tools heading to populate this section.

Overview

What is Building a Remote MCP Server on Cloudflare (Without Auth)?

This example deploys a remote MCP (Model Context Protocol) server on Cloudflare Workers that requires no authentication. It is intended for developers who want to host MCP tools in a serverless environment and connect them to MCP clients like Cloudflare AI Playground or Claude Desktop.

How to use Building a Remote MCP Server on Cloudflare (Without Auth)?

Deploy by clicking the "Deploy to Workers" button or by running npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless. Customize tools inside the init() method of src/index.ts using this.server.tool(...). Connect to Cloudflare AI Playground or local clients via the mcp-remote proxy.

Key features of Building a Remote MCP Server on Cloudflare (Without Auth)

Deploy a remote MCP server without authentication
Built on Cloudflare Workers for serverless hosting
Add custom MCP tools in src/index.ts
Connect to Cloudflare AI Playground as a remote client
Connect to Claude Desktop via mcp-remote proxy

Use cases of Building a Remote MCP Server on Cloudflare (Without Auth)

Host a public MCP server for testing or demonstration
Provide MCP tools accessible from Cloudflare AI Playground
Integrate remote MCP tools with Claude Desktop using a proxy

FAQ from Building a Remote MCP Server on Cloudflare (Without Auth)

What dependencies or runtime are required?

The server runs on Cloudflare Workers. Local development requires Node.js and npm. No additional authentication dependencies.

How do I add custom tools?

Define each tool inside the init() method of src/index.ts using this.server.tool(...).

How do I connect to Cloudflare AI Playground?

Go to https://playground.ai.cloudflare.com/ and enter your deployed MCP server URL (e.g., remote-mcp-server-authless.<your-account>.workers.dev/sse).

How do I connect to Claude Desktop?

Use the mcp-remote proxy. In the Claude Desktop config, set the command to npx mcp-remote <your-mcp-server-url/sse>.

What transport does this server use?

It uses SSE (Server-Sent Events) at the /sse endpoint.

Frequently asked questions

What dependencies or runtime are required?

The server runs on Cloudflare Workers. Local development requires Node.js and npm. No additional authentication dependencies.

How do I add custom tools?

Define each tool inside the `init()` method of `src/index.ts` using `this.server.tool(...)`.

How do I connect to Cloudflare AI Playground?

Go to https://playground.ai.cloudflare.com/ and enter your deployed MCP server URL (e.g., `remote-mcp-server-authless.<your-account>.workers.dev/sse`).